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TYPICALPERFORMANCECURVESOFINTERNALFILTER
DecimationFilterFrequencyResponse
normalized 频率 [
×
f
S
]
−200
−150
−100
−50
0
50
0 8 16 24 32 40 48 56 64
oversampling 比率 =
128
振幅 − db
G001
G002
normalized 频率 [
×
f
S
]
−200
−150
−100
−50
0
50
0 8 16 24 32
振幅 − db
oversampling 比率 =
64
G003
normallized 频率 [
×
f
S
]
−100
−90
−80
−70
−60
−50
−40
−30
−20
−10
0
0.00 0.25 0.50 0.75 1.00
振幅 − db
Oversampling
比率 =
128 和
64
G004
normalized 频率 [
×
f
S
]
−1.0
−0.8
−0.6
−0.4
−0.2
0.0
0.2
0.0 0.1 0.2 0.3 0.4 0.5 0.6
振幅 − db
Oversampling
比率 =
128 和
64
PCM1803
SLES125–NOVEMBER2004
AllspecificationsatT
一个
=25
°
c,v
CC
=5v,v
DD
=3.3v,mastermode,f
S
=44.1khz,systemclock=384f
S
,
oversamplingratio=
×
128,24-bitdata,unlessotherwisenoted
OVERALLCHARACTERISTICSOVERALLCHARACTERISTICS
figure1.figure2.
停止-bandattenuationcharacteristicspass-bandripplecharacteristics
figure3.figure4.
6